Chapter 2 Static Route Configuration; Introduction To Static Route - H3C S7500 Series Operation Manual

Operation Manual – Routing Protocol
H3C S7500 Series Ethernet Switches

Chapter 2 Static Route Configuration

When configuring static routes, go to these sections for information you are interested
in:

Introduction to Static Route

Static Route Configuration
Displaying the Routing Table
Static Route Configuration Example
Troubleshooting a Static Route
2.1 Introduction to Static Route
2.1.1 Static Route
Static routes are special routes. They are manually configured by the administrator.
By configuring static routes, you can build an interconnecting network. The problem
for such configuration is that a static route cannot change automatically to steer away
from the fault point without the help of the administrator when a fault occurs on the
network.
In a relatively simple network, you only need to configure static routes to make routers
work normally. Proper configuration and usage of static routes can improve network
performance and ensure sufficient bandwidth for important applications.
Static routes are divided into three types:
Destination reachable route: normal route. If a static route to a destination
belongs to this type, the IP packets sent to this destination will be forwarded to
the next hop. It is the most common type of static routes.
Destination unreachable route: If a static route to a destination has the "reject"
attribute, all the IP packets sent to this destination will be discarded, and the
source hosts will be informed of the unreachability of the destination.
Blackhole route: If a static route to a destination has the "blackhole" attribute,
the outgoing interface of this route is the Null 0 interface regardless of the next
hop address, and all the IP packets sent to this destination will be dropped
without notifying the source hosts.
The attributes "reject" and "blackhole" are usually used to limit the range of the
destinations that this router can reach, and help troubleshoot the network.
Chapter 2 Static Route Configuration
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